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    <title>Document</title>
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<body>
    <script>
        //柯里化思想
        function add (a, b, c) {
            return a + b + c
        }

        //请实现以下效果
        // console.log(add.length);
        
        // const res = add(1, 2, 3) //6
        
        //要求声明一个curry函数，函数add经过curry函数的处理后，每次调用只能接收一个参数
        const curry = (fn) => {
            const curry1 = (...as) =>
                (as.length === fn.length)
                ?fn(...as):(..._as) => curry1(...as, ..._as)
                return curry1
        }
        const addCurry = curry(add)
        // console.log(addCurry);
        const res2 = addCurry(1)(2)(3) //6
        console.log(res2);
    </script>
</body>

</html>